Washington Crossing Historic Park is a 500-acre (2 km2) state park operated by the Pennsylvania Department of Conservation and Natural Resources in partnership with the Friends of Washington Crossing Park. The park is divided into two sections. One section of the park, the "lower park," is headquartered in the village of Washington Crossing located in Upper Makefield Township in Bucks County, Pennsylvania. It marks the location of George Washington's crossing of the Delaware River during the American Revolutionary War.

George Washington's crossing of the Delaware River, which occurred on the night of December 25–26, 1776 during the American Revolutionary War, was the first move in a complex and surprise military maneuver and attack organized by George Washington, the commander-in-chief of the Continental Army, which culminated in their attack on Hessian forces garrisoned at Trenton. The Hessians were German mercenaries hired by the British.